ERC-721
Overview
Max Total Supply
1,231 Seeka-Egg
Holders
265
Market
Volume (24H)
0.0693 ETH
Min Price (24H)
$52.84 @ 0.023100 ETH
Max Price (24H)
$52.84 @ 0.023100 ETH
Other Info
Token Contract
Balance
1 Seeka-EggLoading...
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# | Exchange | Pair | Price | 24H Volume | % Volume |
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Contract Name:
SeekaEggs
Compiler Version
v0.8.20+commit.a1b79de6
Optimization Enabled:
Yes with 200 runs
Other Settings:
paris EvmVersion
Contract Source Code (Solidity Standard Json-Input format)
/* @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ @@ @@@, @@@@@( @@@ @/ &# @ .@@@@@@ *@@@@@@@@@@* %@@@ @@ V. @@@@@ @@@ / @ @ %@@@ @@, @@ @@ @> @. @@@@@ @@ @ @@@@@@, @@@@@@@ @@@ /@* *@@ @@ ^. @@@@ (@ @ /@@@, @& #& %@@@@@@@@@@ @@ (@, @@@@ % (@ @ /@@@, @ @& .@@@@@@@@@@@ @@ ,@@@@@, @@@# @ @ @@@@@@, @@@@@@@* @ @@@ @@@ @@ ,@@@@@, # #% @ @ @ @@@, @@@@@@ /@@& @@ @@ ,@@@@@, # #@, @ @/ @ @@@, @@@@@@@ @@@@@@@( *@@ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ Planet-X Seeka Eggs playplanetx.com Copyright Play Planet X Ltd © 2024 | All rights reserved cfec19b223b57f38d96f52994b515d455b5dd1bb3741b8791ada32f862e95879 */ // SPDX-License-Identifier: UNLICENSED pragma solidity ^0.8.20; import "./lib/ERC721CEnumerable.sol"; import "@creatortoken/token/erc721/ERC721OpenZeppelin.sol"; import "@creatortoken/access/OwnableBasic.sol"; import "@creatortoken/programmable-royalties/BasicRoyalties.sol"; import "@openzeppelin/contracts/security/ReentrancyGuard.sol"; interface SeekaEggEvents { event ClaimForDroids(address indexed user, uint256 count); event ClaimForGroup(address indexed user, uint256 groupId); event RewardsGroupCreated(uint256 groupId, uint256 expiry); event DroidAlredyAwarded(uint256 droidId); } error ExceedsMaxSupply(); error RewardsExpired(); error InvalidRewardsGroup(); error EmptyClaimants(); error NotEntitledToClaim(); error InvalidClaimCount(); interface ITokensOfOwner { function tokensOfOwner( address owner ) external view returns (uint256[] memory); } interface IStakingContract { function getStakedTokens( address user, address contractAddress ) external view returns (uint256[] memory); } contract SeekaEggs is SeekaEggEvents, OwnableBasic, BasicRoyalties, ReentrancyGuard, ERC721CEnumerable { uint256 public rewardGroupCounter; uint256 public constant MAX_SUPPLY = 10000; address private xDroids; address private stakingContract; string private baseURI = "https://planetx-nft-backend-3euf4.ondigitalocean.app/metadata/seeka-eggs/"; mapping(uint256 groupId => mapping(address => bool)) private _claimEntitlements; mapping(uint256 id => uint256 expires) public groups; mapping(uint256 droidId => bool) public droidsAwarded; constructor( address _xDroidsAddr, address _stakingContractAddr ) ERC721OpenZeppelin("Seeka Egg", "Seeka-Egg") BasicRoyalties(msg.sender, 500) // 5% royalties to the contract owner { xDroids = _xDroidsAddr; stakingContract = _stakingContractAddr; } /// @notice Mint ERC721 tokens to a list of addresses /// @param _addresses The addresses to airdrop to function mintDropTokens(address[] calldata _addresses) external onlyOwner { uint256 mintCount = totalSupply(); if (mintCount + _addresses.length > MAX_SUPPLY) { revert ExceedsMaxSupply(); } uint256 i; uint256 len = _addresses.length; for (i; i < len; ) { _mint(_addresses[i], mintCount + i + 1); unchecked { ++i; } } } /// @notice Set a group of addresses to be entitled to claim rewards /// @param claimants The addresses to be entitled to claim rewards /// @param expiry The expiry of the reward for the group function setRewardGroup( address[] calldata claimants, uint256 expiry ) external onlyOwner { uint256 len = claimants.length; if (len == 0) { revert EmptyClaimants(); } if (totalSupply() + len > MAX_SUPPLY) { revert ExceedsMaxSupply(); } uint256 counter = rewardGroupCounter; rewardGroupCounter = counter + 1; groups[counter + 1] = expiry; uint256 i; for (i; i < len; ) { _claimEntitlements[counter + 1][claimants[i]] = true; unchecked { ++i; } } emit RewardsGroupCreated(counter + 1, expiry); } /// @notice Set the staking contract address /// @param _stakingContractAddr The address of the staking contract function setStakingContract( address _stakingContractAddr ) external onlyOwner { stakingContract = _stakingContractAddr; } /// @notice Set the expiry for a group of rewards /// @param groupId The group id to set the expiry for /// @param expiry The expiry timestamp of the reward for the group function setGroupExpiry( uint256 groupId, uint256 expiry ) external onlyOwner { if (groupId > rewardGroupCounter) { revert InvalidRewardsGroup(); } groups[groupId] = expiry; } /// @notice Remove claimants from a group /// @param claimants The addresses to remove from the group /// @param groupId The group id to remove the claimants from function removeClaimants( address[] calldata claimants, uint256 groupId ) external onlyOwner { if (groupId > rewardGroupCounter) { revert InvalidRewardsGroup(); } uint256 i; uint256 len = claimants.length; for (i; i < len; ) { _claimEntitlements[groupId][claimants[i]] = false; unchecked { ++i; } } } /// @notice Add claimants to a group /// @param claimants The addresses to add to the group /// @param groupId The group id to add the claimants to function addClaimants( address[] calldata claimants, uint256 groupId ) external onlyOwner { if (groupId > rewardGroupCounter) { revert InvalidRewardsGroup(); } uint256 i; uint256 len = claimants.length; for (i; i < len; ) { _claimEntitlements[groupId][claimants[i]] = true; unchecked { ++i; } } } /// @notice Check if a user can claim for a group /// @param groupId The group id to check /// @param user The user to check function canClaimForGroup( uint256 groupId, address user ) external view returns (bool) { return _claimEntitlements[groupId][user]; } /// @notice Get the groups a user is entitled to claim for /// @param user The user to check function getEntitledGroups( address user ) external view returns (uint256[] memory) { bool[] memory entitledGroups = new bool[](rewardGroupCounter); uint256 i; uint256 count; for (i; i < rewardGroupCounter; ) { bool entitled = _claimEntitlements[i + 1][user]; if (entitled) { count++; } entitledGroups[i] = entitled; i++; } // turn [0,1,0,1] into [1,3] uint256[] memory result = new uint256[](count); uint256 j; for (i = 0; i < rewardGroupCounter; ) { if (entitledGroups[i]) { result[j] = i + 1; j++; } i++; } return result; } /// @notice Get the number of claimable droids for a user /// @param owner The owner to check function getClaimableDroidsCount( address owner ) external view returns (uint256) { uint256[] memory droids = ITokensOfOwner(xDroids).tokensOfOwner(owner); uint256[] memory stakedDroids = IStakingContract(stakingContract) .getStakedTokens(owner, xDroids); uint256 i; uint256 len = droids.length; uint256 totalLen = len + stakedDroids.length; uint256 count; for (i; i < totalLen; ) { uint256 droidId = i < len ? droids[i] : stakedDroids[i - len]; if (!droidsAwarded[droidId]) { count++; } unchecked { ++i; } } return count; } /// @notice Claim rewards as part of a group /// @param groupId The group id to claim rewards for function claimForGroup(uint256 groupId) external nonReentrant { if (groupId > rewardGroupCounter) { revert InvalidRewardsGroup(); } uint256 supply = totalSupply(); if (supply == MAX_SUPPLY) { revert ExceedsMaxSupply(); } uint256 expiry = groups[groupId]; // if (expiry > 0 && block.timestamp > expiry) { revert RewardsExpired(); } if (_claimEntitlements[groupId][msg.sender] == false) { revert NotEntitledToClaim(); } // remove the entitlement _claimEntitlements[groupId][msg.sender] = false; _mint(msg.sender, supply + 1); emit ClaimForGroup(msg.sender, groupId); } /// @notice Claim rewards for droids owned and staked function claimForDroids(uint256 amount) external nonReentrant { if (amount < 1) { revert InvalidClaimCount(); } // get the tokens owner and staked for the user uint256[] memory droids = ITokensOfOwner(xDroids).tokensOfOwner( msg.sender ); // get any staked droids uint256[] memory stakedDroids = IStakingContract(stakingContract) .getStakedTokens(msg.sender, xDroids); // iterate over the droids and staked droids // and claim the eggs for them uint256 i; uint256 len = droids.length; uint256 totalLen = len + stakedDroids.length; if (totalLen == 0) { revert NotEntitledToClaim(); } uint256 initCount = totalSupply(); uint256 mintCount = initCount; for (i; i < totalLen; ) { uint256 droidId = i < len ? droids[i] : stakedDroids[i - len]; // check if the droid has already been awarded if (droidsAwarded[droidId]) { emit DroidAlredyAwarded(droidId); unchecked { ++i; } continue; } droidsAwarded[droidId] = true; _mint(msg.sender, ++mintCount); // check if we have reached the max supply // and break the loop if (mintCount == MAX_SUPPLY) { break; } // limit the mint count to the amount requested if (mintCount - initCount == amount) { break; } unchecked { ++i; } } emit ClaimForDroids(msg.sender, mintCount - initCount); } ///////////////////////// // Base ERC721 functions and overrides ///////////////////////// function setBaseURI(string memory _newBaseURI) external onlyOwner { baseURI = _newBaseURI; } /** * @dev override for ERC271 */ function _baseURI() internal view override returns (string memory) { return baseURI; } function supportsInterface( bytes4 interfaceId ) public view virtual override(ERC721CEnumerable, ERC2981) returns (bool) { // ensure all interfaces are supported return ERC721CEnumerable.supportsInterface(interfaceId) || ERC2981.supportsInterface(interfaceId); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.8.0) (token/ERC721/extensions/ERC721Enumerable.sol) pragma solidity ^0.8.0; import {ERC721C} from "lib/creator-token-contracts/contracts/erc721c/ERC721C.sol"; import "@openzeppelin/contracts/token/ERC721/extensions/IERC721Enumerable.sol"; import "@openzeppelin/contracts/token/ERC721/ERC721.sol"; /** * @dev This implements an optional extension of {ERC721} defined in the EIP that adds * enumerability of all the token ids in the contract as well as all token ids owned by each * account. */ abstract contract ERC721CEnumerable is ERC721C, IERC721Enumerable { // Mapping from owner to list of owned token IDs mapping(address => mapping(uint256 => uint256)) private _ownedTokens; // Mapping from token ID to index of the owner tokens list mapping(uint256 => uint256) private _ownedTokensIndex; // Array with all token ids, used for enumeration uint256[] private _allTokens; // Mapping from token id to position in the allTokens array mapping(uint256 => uint256) private _allTokensIndex; /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface( bytes4 interfaceId ) public view virtual override(IERC165, ERC721C) returns (bool) { return interfaceId == type(IERC721Enumerable).interfaceId || super.supportsInterface(interfaceId); } /** * @dev See {IERC721Enumerable-tokenOfOwnerByIndex}. */ function tokenOfOwnerByIndex( address owner, uint256 index ) public view virtual override returns (uint256) { require( index < ERC721.balanceOf(owner), "ERC721Enumerable: owner index out of bounds" ); return _ownedTokens[owner][index]; } /** * @dev See {IERC721Enumerable-totalSupply}. */ function totalSupply() public view virtual override returns (uint256) { return _allTokens.length; } /** * @dev See {IERC721Enumerable-tokenByIndex}. */ function tokenByIndex( uint256 index ) public view virtual override returns (uint256) { require( index < ERC721CEnumerable.totalSupply(), "ERC721Enumerable: global index out of bounds" ); return _allTokens[index]; } /** * @dev An optional extension to the ERC721 standard. Returns the list of token IDs owned by `owner`. */ function tokensOfOwner( address owner ) external view returns (uint256[] memory) { uint256 tokenCount = balanceOf(owner); uint256[] memory result = new uint256[](tokenCount); for (uint256 i = 0; i < tokenCount; i++) { result[i] = tokenOfOwnerByIndex(owner, i); } return result; } /** * @dev See {ERC721-_beforeTokenTransfer}. */ function _beforeTokenTransfer( address from, address to, uint256 firstTokenId, uint256 batchSize ) internal virtual override { super._beforeTokenTransfer(from, to, firstTokenId, batchSize); if (batchSize > 1) { // Will only trigger during construction. Batch transferring (minting) is not available afterwards. revert("ERC721Enumerable: consecutive transfers not supported"); } uint256 tokenId = firstTokenId; if (from == address(0)) { _addTokenToAllTokensEnumeration(tokenId); } else if (from != to) { _removeTokenFromOwnerEnumeration(from, tokenId); } if (to == address(0)) { _removeTokenFromAllTokensEnumeration(tokenId); } else if (to != from) { _addTokenToOwnerEnumeration(to, tokenId); } } /** * @dev Private function to add a token to this extension's ownership-tracking data structures. * @param to address representing the new owner of the given token ID * @param tokenId uint256 ID of the token to be added to the tokens list of the given address */ function _addTokenToOwnerEnumeration(address to, uint256 tokenId) private { uint256 length = ERC721.balanceOf(to); _ownedTokens[to][length] = tokenId; _ownedTokensIndex[tokenId] = length; } /** * @dev Private function to add a token to this extension's token tracking data structures. * @param tokenId uint256 ID of the token to be added to the tokens list */ function _addTokenToAllTokensEnumeration(uint256 tokenId) private { _allTokensIndex[tokenId] = _allTokens.length; _allTokens.push(tokenId); } /** * @dev Private function to remove a token from this extension's ownership-tracking data structures. Note that * while the token is not assigned a new owner, the `_ownedTokensIndex` mapping is _not_ updated: this allows for * gas optimizations e.g. when performing a transfer operation (avoiding double writes). * This has O(1) time complexity, but alters the order of the _ownedTokens array. * @param from address representing the previous owner of the given token ID * @param tokenId uint256 ID of the token to be removed from the tokens list of the given address */ function _removeTokenFromOwnerEnumeration( address from, uint256 tokenId ) private { // To prevent a gap in from's tokens array, we store the last token in the index of the token to delete, and // then delete the last slot (swap and pop). uint256 lastTokenIndex = ERC721.balanceOf(from) - 1; uint256 tokenIndex = _ownedTokensIndex[tokenId]; // When the token to delete is the last token, the swap operation is unnecessary if (tokenIndex != lastTokenIndex) { uint256 lastTokenId = _ownedTokens[from][lastTokenIndex]; _ownedTokens[from][tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token _ownedTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index } // This also deletes the contents at the last position of the array delete _ownedTokensIndex[tokenId]; delete _ownedTokens[from][lastTokenIndex]; } /** * @dev Private function to remove a token from this extension's token tracking data structures. * This has O(1) time complexity, but alters the order of the _allTokens array. * @param tokenId uint256 ID of the token to be removed from the tokens list */ function _removeTokenFromAllTokensEnumeration(uint256 tokenId) private { // To prevent a gap in the tokens array, we store the last token in the index of the token to delete, and // then delete the last slot (swap and pop). uint256 lastTokenIndex = _allTokens.length - 1; uint256 tokenIndex = _allTokensIndex[tokenId]; // When the token to delete is the last token, the swap operation is unnecessary. However, since this occurs so // rarely (when the last minted token is burnt) that we still do the swap here to avoid the gas cost of adding // an 'if' statement (like in _removeTokenFromOwnerEnumeration) uint256 lastTokenId = _allTokens[lastTokenIndex]; _allTokens[tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token _allTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index // This also deletes the contents at the last position of the array delete _allTokensIndex[tokenId]; _allTokens.pop(); } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.4; import "../../access/OwnablePermissions.sol"; import "@openzeppelin/contracts/token/ERC721/ERC721.sol"; abstract contract ERC721OpenZeppelinBase is ERC721 { // Token name string internal _contractName; // Token symbol string internal _contractSymbol; function name() public view virtual override returns (string memory) { return _contractName; } function symbol() public view virtual override returns (string memory) { return _contractSymbol; } function _setNameAndSymbol(string memory name_, string memory symbol_) internal { _contractName = name_; _contractSymbol = symbol_; } } abstract contract ERC721OpenZeppelin is ERC721OpenZeppelinBase { constructor(string memory name_, string memory symbol_) ERC721("", "") { _setNameAndSymbol(name_, symbol_); } } abstract contract ERC721OpenZeppelinInitializable is OwnablePermissions, ERC721OpenZeppelinBase { error ERC721OpenZeppelinInitializable__AlreadyInitializedERC721(); /// @notice Specifies whether or not the contract is initialized bool private _erc721Initialized; /// @dev Initializes parameters of ERC721 tokens. /// These cannot be set in the constructor because this contract is optionally compatible with EIP-1167. function initializeERC721(string memory name_, string memory symbol_) public { _requireCallerIsContractOwner(); if(_erc721Initialized) { revert ERC721OpenZeppelinInitializable__AlreadyInitializedERC721(); } _erc721Initialized = true; _setNameAndSymbol(name_, symbol_); } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.4; import "./OwnablePermissions.sol"; import "@openzeppelin/contracts/access/Ownable.sol"; abstract contract OwnableBasic is OwnablePermissions, Ownable { function _requireCallerIsContractOwner() internal view virtual override { _checkOwner(); } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.4; import "@openzeppelin/contracts/token/common/ERC2981.sol"; /** * @title BasicRoyaltiesBase * @author Limit Break, Inc. * @dev Base functionality of an NFT mix-in contract implementing the most basic form of programmable royalties. */ abstract contract BasicRoyaltiesBase is ERC2981 { event DefaultRoyaltySet(address indexed receiver, uint96 feeNumerator); event TokenRoyaltySet(uint256 indexed tokenId, address indexed receiver, uint96 feeNumerator); function _setDefaultRoyalty(address receiver, uint96 feeNumerator) internal virtual override { super._setDefaultRoyalty(receiver, feeNumerator); emit DefaultRoyaltySet(receiver, feeNumerator); } function _setTokenRoyalty(uint256 tokenId, address receiver, uint96 feeNumerator) internal virtual override { super._setTokenRoyalty(tokenId, receiver, feeNumerator); emit TokenRoyaltySet(tokenId, receiver, feeNumerator); } } /** * @title BasicRoyalties * @author Limit Break, Inc. * @notice Constructable BasicRoyalties Contract implementation. */ abstract contract BasicRoyalties is BasicRoyaltiesBase { constructor(address receiver, uint96 feeNumerator) { _setDefaultRoyalty(receiver, feeNumerator); } } /** * @title BasicRoyaltiesInitializable * @author Limit Break, Inc. * @notice Initializable BasicRoyalties Contract implementation to allow for EIP-1167 clones. */ abstract contract BasicRoyaltiesInitializable is BasicRoyaltiesBase {}
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.8.0) (security/ReentrancyGuard.sol) pragma solidity ^0.8.0; /** * @dev Contract module that helps prevent reentrant calls to a function. * * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier * available, which can be applied to functions to make sure there are no nested * (reentrant) calls to them. * * Note that because there is a single `nonReentrant` guard, functions marked as * `nonReentrant` may not call one another. This can be worked around by making * those functions `private`, and then adding `external` `nonReentrant` entry * points to them. * * TIP: If you would like to learn more about reentrancy and alternative ways * to protect against it, check out our blog post * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul]. */ abstract contract ReentrancyGuard { // Booleans are more expensive than uint256 or any type that takes up a full // word because each write operation emits an extra SLOAD to first read the // slot's contents, replace the bits taken up by the boolean, and then write // back. This is the compiler's defense against contract upgrades and // pointer aliasing, and it cannot be disabled. // The values being non-zero value makes deployment a bit more expensive, // but in exchange the refund on every call to nonReentrant will be lower in // amount. Since refunds are capped to a percentage of the total // transaction's gas, it is best to keep them low in cases like this one, to // increase the likelihood of the full refund coming into effect. uint256 private constant _NOT_ENTERED = 1; uint256 private constant _ENTERED = 2; uint256 private _status; constructor() { _status = _NOT_ENTERED; } /** * @dev Prevents a contract from calling itself, directly or indirectly. * Calling a `nonReentrant` function from another `nonReentrant` * function is not supported. It is possible to prevent this from happening * by making the `nonReentrant` function external, and making it call a * `private` function that does the actual work. */ modifier nonReentrant() { _nonReentrantBefore(); _; _nonReentrantAfter(); } function _nonReentrantBefore() private { // On the first call to nonReentrant, _status will be _NOT_ENTERED require(_status != _ENTERED, "ReentrancyGuard: reentrant call"); // Any calls to nonReentrant after this point will fail _status = _ENTERED; } function _nonReentrantAfter() private { // By storing the original value once again, a refund is triggered (see // https://eips.ethereum.org/EIPS/eip-2200) _status = _NOT_ENTERED; } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.4; import "../utils/CreatorTokenBase.sol"; import "../token/erc721/ERC721OpenZeppelin.sol"; /** * @title ERC721C * @author Limit Break, Inc. * @notice Extends OpenZeppelin's ERC721 implementation with Creator Token functionality, which * allows the contract owner to update the transfer validation logic by managing a security policy in * an external transfer validation security policy registry. See {CreatorTokenTransferValidator}. */ abstract contract ERC721C is ERC721OpenZeppelin, CreatorTokenBase { function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { return interfaceId == type(ICreatorToken).interfaceId || super.supportsInterface(interfaceId); } /// @dev Ties the open-zeppelin _beforeTokenTransfer hook to more granular transfer validation logic function _beforeTokenTransfer( address from, address to, uint256 firstTokenId, uint256 batchSize) internal virtual override { for (uint256 i = 0; i < batchSize;) { _validateBeforeTransfer(from, to, firstTokenId + i); unchecked { ++i; } } } /// @dev Ties the open-zeppelin _afterTokenTransfer hook to more granular transfer validation logic function _afterTokenTransfer( address from, address to, uint256 firstTokenId, uint256 batchSize) internal virtual override { for (uint256 i = 0; i < batchSize;) { _validateAfterTransfer(from, to, firstTokenId + i); unchecked { ++i; } } } } /** * @title ERC721CInitializable * @author Limit Break, Inc. * @notice Initializable implementation of ERC721C to allow for EIP-1167 proxy clones. */ abstract contract ERC721CInitializable is ERC721OpenZeppelinInitializable, CreatorTokenBase { function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { return interfaceId == type(ICreatorToken).interfaceId || super.supportsInterface(interfaceId); } /// @dev Ties the open-zeppelin _beforeTokenTransfer hook to more granular transfer validation logic function _beforeTokenTransfer( address from, address to, uint256 firstTokenId, uint256 batchSize) internal virtual override { for (uint256 i = 0; i < batchSize;) { _validateBeforeTransfer(from, to, firstTokenId + i); unchecked { ++i; } } } /// @dev Ties the open-zeppelin _afterTokenTransfer hook to more granular transfer validation logic function _afterTokenTransfer( address from, address to, uint256 firstTokenId, uint256 batchSize) internal virtual override { for (uint256 i = 0; i < batchSize;) { _validateAfterTransfer(from, to, firstTokenId + i); unchecked { ++i; } } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.5.0) (token/ERC721/extensions/IERC721Enumerable.sol) pragma solidity ^0.8.0; import "../IERC721.sol"; /** * @title ERC-721 Non-Fungible Token Standard, optional enumeration extension * @dev See https://eips.ethereum.org/EIPS/eip-721 */ interface IERC721Enumerable is IERC721 { /** * @dev Returns the total amount of tokens stored by the contract. */ function totalSupply() external view returns (uint256); /** * @dev Returns a token ID owned by `owner` at a given `index` of its token list. * Use along with {balanceOf} to enumerate all of ``owner``'s tokens. */ function tokenOfOwnerByIndex(address owner, uint256 index) external view returns (uint256); /** * @dev Returns a token ID at a given `index` of all the tokens stored by the contract. * Use along with {totalSupply} to enumerate all tokens. */ function tokenByIndex(uint256 index) external view returns (uint256); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.8.2) (token/ERC721/ERC721.sol) pragma solidity ^0.8.0; import "./IERC721.sol"; import "./IERC721Receiver.sol"; import "./extensions/IERC721Metadata.sol"; import "../../utils/Address.sol"; import "../../utils/Context.sol"; import "../../utils/Strings.sol"; import "../../utils/introspection/ERC165.sol"; /** * @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including * the Metadata extension, but not including the Enumerable extension, which is available separately as * {ERC721Enumerable}. */ contract ERC721 is Context, ERC165, IERC721, IERC721Metadata { using Address for address; using Strings for uint256; // Token name string private _name; // Token symbol string private _symbol; // Mapping from token ID to owner address mapping(uint256 => address) private _owners; // Mapping owner address to token count mapping(address => uint256) private _balances; // Mapping from token ID to approved address mapping(uint256 => address) private _tokenApprovals; // Mapping from owner to operator approvals mapping(address => mapping(address => bool)) private _operatorApprovals; /** * @dev Initializes the contract by setting a `name` and a `symbol` to the token collection. */ constructor(string memory name_, string memory symbol_) { _name = name_; _symbol = symbol_; } /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) { return interfaceId == type(IERC721).interfaceId || interfaceId == type(IERC721Metadata).interfaceId || super.supportsInterface(interfaceId); } /** * @dev See {IERC721-balanceOf}. */ function balanceOf(address owner) public view virtual override returns (uint256) { require(owner != address(0), "ERC721: address zero is not a valid owner"); return _balances[owner]; } /** * @dev See {IERC721-ownerOf}. */ function ownerOf(uint256 tokenId) public view virtual override returns (address) { address owner = _ownerOf(tokenId); require(owner != address(0), "ERC721: invalid token ID"); return owner; } /** * @dev See {IERC721Metadata-name}. */ function name() public view virtual override returns (string memory) { return _name; } /** * @dev See {IERC721Metadata-symbol}. */ function symbol() public view virtual override returns (string memory) { return _symbol; } /** * @dev See {IERC721Metadata-tokenURI}. */ function tokenURI(uint256 tokenId) public view virtual override returns (string memory) { _requireMinted(tokenId); string memory baseURI = _baseURI(); return bytes(baseURI).length > 0 ? string(abi.encodePacked(baseURI, tokenId.toString())) : ""; } /** * @dev Base URI for computing {tokenURI}. If set, the resulting URI for each * token will be the concatenation of the `baseURI` and the `tokenId`. Empty * by default, can be overridden in child contracts. */ function _baseURI() internal view virtual returns (string memory) { return ""; } /** * @dev See {IERC721-approve}. */ function approve(address to, uint256 tokenId) public virtual override { address owner = ERC721.ownerOf(tokenId); require(to != owner, "ERC721: approval to current owner"); require( _msgSender() == owner || isApprovedForAll(owner, _msgSender()), "ERC721: approve caller is not token owner or approved for all" ); _approve(to, tokenId); } /** * @dev See {IERC721-getApproved}. */ function getApproved(uint256 tokenId) public view virtual override returns (address) { _requireMinted(tokenId); return _tokenApprovals[tokenId]; } /** * @dev See {IERC721-setApprovalForAll}. */ function setApprovalForAll(address operator, bool approved) public virtual override { _setApprovalForAll(_msgSender(), operator, approved); } /** * @dev See {IERC721-isApprovedForAll}. */ function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) { return _operatorApprovals[owner][operator]; } /** * @dev See {IERC721-transferFrom}. */ function transferFrom( address from, address to, uint256 tokenId ) public virtual override { //solhint-disable-next-line max-line-length require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: caller is not token owner or approved"); _transfer(from, to, tokenId); } /** * @dev See {IERC721-safeTransferFrom}. */ function safeTransferFrom( address from, address to, uint256 tokenId ) public virtual override { safeTransferFrom(from, to, tokenId, ""); } /** * @dev See {IERC721-safeTransferFrom}. */ function safeTransferFrom( address from, address to, uint256 tokenId, bytes memory data ) public virtual override { require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: caller is not token owner or approved"); _safeTransfer(from, to, tokenId, data); } /** * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients * are aware of the ERC721 protocol to prevent tokens from being forever locked. * * `data` is additional data, it has no specified format and it is sent in call to `to`. * * This internal function is equivalent to {safeTransferFrom}, and can be used to e.g. * implement alternative mechanisms to perform token transfer, such as signature-based. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function _safeTransfer( address from, address to, uint256 tokenId, bytes memory data ) internal virtual { _transfer(from, to, tokenId); require(_checkOnERC721Received(from, to, tokenId, data), "ERC721: transfer to non ERC721Receiver implementer"); } /** * @dev Returns the owner of the `tokenId`. Does NOT revert if token doesn't exist */ function _ownerOf(uint256 tokenId) internal view virtual returns (address) { return _owners[tokenId]; } /** * @dev Returns whether `tokenId` exists. * * Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}. * * Tokens start existing when they are minted (`_mint`), * and stop existing when they are burned (`_burn`). */ function _exists(uint256 tokenId) internal view virtual returns (bool) { return _ownerOf(tokenId) != address(0); } /** * @dev Returns whether `spender` is allowed to manage `tokenId`. * * Requirements: * * - `tokenId` must exist. */ function _isApprovedOrOwner(address spender, uint256 tokenId) internal view virtual returns (bool) { address owner = ERC721.ownerOf(tokenId); return (spender == owner || isApprovedForAll(owner, spender) || getApproved(tokenId) == spender); } /** * @dev Safely mints `tokenId` and transfers it to `to`. * * Requirements: * * - `tokenId` must not exist. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function _safeMint(address to, uint256 tokenId) internal virtual { _safeMint(to, tokenId, ""); } /** * @dev Same as {xref-ERC721-_safeMint-address-uint256-}[`_safeMint`], with an additional `data` parameter which is * forwarded in {IERC721Receiver-onERC721Received} to contract recipients. */ function _safeMint( address to, uint256 tokenId, bytes memory data ) internal virtual { _mint(to, tokenId); require( _checkOnERC721Received(address(0), to, tokenId, data), "ERC721: transfer to non ERC721Receiver implementer" ); } /** * @dev Mints `tokenId` and transfers it to `to`. * * WARNING: Usage of this method is discouraged, use {_safeMint} whenever possible * * Requirements: * * - `tokenId` must not exist. * - `to` cannot be the zero address. * * Emits a {Transfer} event. */ function _mint(address to, uint256 tokenId) internal virtual { require(to != address(0), "ERC721: mint to the zero address"); require(!_exists(tokenId), "ERC721: token already minted"); _beforeTokenTransfer(address(0), to, tokenId, 1); // Check that tokenId was not minted by `_beforeTokenTransfer` hook require(!_exists(tokenId), "ERC721: token already minted"); unchecked { // Will not overflow unless all 2**256 token ids are minted to the same owner. // Given that tokens are minted one by one, it is impossible in practice that // this ever happens. Might change if we allow batch minting. // The ERC fails to describe this case. _balances[to] += 1; } _owners[tokenId] = to; emit Transfer(address(0), to, tokenId); _afterTokenTransfer(address(0), to, tokenId, 1); } /** * @dev Destroys `tokenId`. * The approval is cleared when the token is burned. * This is an internal function that does not check if the sender is authorized to operate on the token. * * Requirements: * * - `tokenId` must exist. * * Emits a {Transfer} event. */ function _burn(uint256 tokenId) internal virtual { address owner = ERC721.ownerOf(tokenId); _beforeTokenTransfer(owner, address(0), tokenId, 1); // Update ownership in case tokenId was transferred by `_beforeTokenTransfer` hook owner = ERC721.ownerOf(tokenId); // Clear approvals delete _tokenApprovals[tokenId]; unchecked { // Cannot overflow, as that would require more tokens to be burned/transferred // out than the owner initially received through minting and transferring in. _balances[owner] -= 1; } delete _owners[tokenId]; emit Transfer(owner, address(0), tokenId); _afterTokenTransfer(owner, address(0), tokenId, 1); } /** * @dev Transfers `tokenId` from `from` to `to`. * As opposed to {transferFrom}, this imposes no restrictions on msg.sender. * * Requirements: * * - `to` cannot be the zero address. * - `tokenId` token must be owned by `from`. * * Emits a {Transfer} event. */ function _transfer( address from, address to, uint256 tokenId ) internal virtual { require(ERC721.ownerOf(tokenId) == from, "ERC721: transfer from incorrect owner"); require(to != address(0), "ERC721: transfer to the zero address"); _beforeTokenTransfer(from, to, tokenId, 1); // Check that tokenId was not transferred by `_beforeTokenTransfer` hook require(ERC721.ownerOf(tokenId) == from, "ERC721: transfer from incorrect owner"); // Clear approvals from the previous owner delete _tokenApprovals[tokenId]; unchecked { // `_balances[from]` cannot overflow for the same reason as described in `_burn`: // `from`'s balance is the number of token held, which is at least one before the current // transfer. // `_balances[to]` could overflow in the conditions described in `_mint`. That would require // all 2**256 token ids to be minted, which in practice is impossible. _balances[from] -= 1; _balances[to] += 1; } _owners[tokenId] = to; emit Transfer(from, to, tokenId); _afterTokenTransfer(from, to, tokenId, 1); } /** * @dev Approve `to` to operate on `tokenId` * * Emits an {Approval} event. */ function _approve(address to, uint256 tokenId) internal virtual { _tokenApprovals[tokenId] = to; emit Approval(ERC721.ownerOf(tokenId), to, tokenId); } /** * @dev Approve `operator` to operate on all of `owner` tokens * * Emits an {ApprovalForAll} event. */ function _setApprovalForAll( address owner, address operator, bool approved ) internal virtual { require(owner != operator, "ERC721: approve to caller"); _operatorApprovals[owner][operator] = approved; emit ApprovalForAll(owner, operator, approved); } /** * @dev Reverts if the `tokenId` has not been minted yet. */ function _requireMinted(uint256 tokenId) internal view virtual { require(_exists(tokenId), "ERC721: invalid token ID"); } /** * @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address. * The call is not executed if the target address is not a contract. * * @param from address representing the previous owner of the given token ID * @param to target address that will receive the tokens * @param tokenId uint256 ID of the token to be transferred * @param data bytes optional data to send along with the call * @return bool whether the call correctly returned the expected magic value */ function _checkOnERC721Received( address from, address to, uint256 tokenId, bytes memory data ) private returns (bool) { if (to.isContract()) { try IERC721Receiver(to).onERC721Received(_msgSender(), from, tokenId, data) returns (bytes4 retval) { return retval == IERC721Receiver.onERC721Received.selector; } catch (bytes memory reason) { if (reason.length == 0) { revert("ERC721: transfer to non ERC721Receiver implementer"); } else { /// @solidity memory-safe-assembly assembly { revert(add(32, reason), mload(reason)) } } } } else { return true; } } /** * @dev Hook that is called before any token transfer. This includes minting and burning. If {ERC721Consecutive} is * used, the hook may be called as part of a consecutive (batch) mint, as indicated by `batchSize` greater than 1. * * Calling conditions: * * - When `from` and `to` are both non-zero, ``from``'s tokens will be transferred to `to`. * - When `from` is zero, the tokens will be minted for `to`. * - When `to` is zero, ``from``'s tokens will be burned. * - `from` and `to` are never both zero. * - `batchSize` is non-zero. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. */ function _beforeTokenTransfer( address from, address to, uint256 firstTokenId, uint256 batchSize ) internal virtual {} /** * @dev Hook that is called after any token transfer. This includes minting and burning. If {ERC721Consecutive} is * used, the hook may be called as part of a consecutive (batch) mint, as indicated by `batchSize` greater than 1. * * Calling conditions: * * - When `from` and `to` are both non-zero, ``from``'s tokens were transferred to `to`. * - When `from` is zero, the tokens were minted for `to`. * - When `to` is zero, ``from``'s tokens were burned. * - `from` and `to` are never both zero. * - `batchSize` is non-zero. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. */ function _afterTokenTransfer( address from, address to, uint256 firstTokenId, uint256 batchSize ) internal virtual {} /** * @dev Unsafe write access to the balances, used by extensions that "mint" tokens using an {ownerOf} override. * * WARNING: Anyone calling this MUST ensure that the balances remain consistent with the ownership. The invariant * being that for any address `a` the value returned by `balanceOf(a)` must be equal to the number of tokens such * that `ownerOf(tokenId)` is `a`. */ // solhint-disable-next-line func-name-mixedcase function __unsafe_increaseBalance(address account, uint256 amount) internal { _balances[account] += amount; } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.4; import "@openzeppelin/contracts/utils/Context.sol"; abstract contract OwnablePermissions is Context { function _requireCallerIsContractOwner() internal view virtual; }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.7.0) (access/Ownable.sol) pragma solidity ^0.8.0; import "../utils/Context.sol"; /** * @dev Contract module which provides a basic access control mechanism, where * there is an account (an owner) that can be granted exclusive access to * specific functions. * * By default, the owner account will be the one that deploys the contract. This * can later be changed with {transferOwnership}. * * This module is used through inheritance. It will make available the modifier * `onlyOwner`, which can be applied to your functions to restrict their use to * the owner. */ abstract contract Ownable is Context { address private _owner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /** * @dev Initializes the contract setting the deployer as the initial owner. */ constructor() { _transferOwnership(_msgSender()); } /** * @dev Throws if called by any account other than the owner. */ modifier onlyOwner() { _checkOwner(); _; } /** * @dev Returns the address of the current owner. */ function owner() public view virtual returns (address) { return _owner; } /** * @dev Throws if the sender is not the owner. */ function _checkOwner() internal view virtual { require(owner() == _msgSender(), "Ownable: caller is not the owner"); } /** * @dev Leaves the contract without owner. It will not be possible to call * `onlyOwner` functions anymore. Can only be called by the current owner. * * NOTE: Renouncing ownership will leave the contract without an owner, * thereby removing any functionality that is only available to the owner. */ function renounceOwnership() public virtual onlyOwner { _transferOwnership(address(0)); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). * Can only be called by the current owner. */ function transferOwnership(address newOwner) public virtual onlyOwner { require(newOwner != address(0), "Ownable: new owner is the zero address"); _transferOwnership(newOwner); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). * Internal function without access restriction. */ function _transferOwnership(address newOwner) internal virtual { address oldOwner = _owner; _owner = newOwner; emit OwnershipTransferred(oldOwner, newOwner); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.7.0) (token/common/ERC2981.sol) pragma solidity ^0.8.0; import "../../interfaces/IERC2981.sol"; import "../../utils/introspection/ERC165.sol"; /** * @dev Implementation of the NFT Royalty Standard, a standardized way to retrieve royalty payment information. * * Royalty information can be specified globally for all token ids via {_setDefaultRoyalty}, and/or individually for * specific token ids via {_setTokenRoyalty}. The latter takes precedence over the first. * * Royalty is specified as a fraction of sale price. {_feeDenominator} is overridable but defaults to 10000, meaning the * fee is specified in basis points by default. * * IMPORTANT: ERC-2981 only specifies a way to signal royalty information and does not enforce its payment. See * https://eips.ethereum.org/EIPS/eip-2981#optional-royalty-payments[Rationale] in the EIP. Marketplaces are expected to * voluntarily pay royalties together with sales, but note that this standard is not yet widely supported. * * _Available since v4.5._ */ abstract contract ERC2981 is IERC2981, ERC165 { struct RoyaltyInfo { address receiver; uint96 royaltyFraction; } RoyaltyInfo private _defaultRoyaltyInfo; mapping(uint256 => RoyaltyInfo) private _tokenRoyaltyInfo; /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override(IERC165, ERC165) returns (bool) { return interfaceId == type(IERC2981).interfaceId || super.supportsInterface(interfaceId); } /** * @inheritdoc IERC2981 */ function royaltyInfo(uint256 _tokenId, uint256 _salePrice) public view virtual override returns (address, uint256) { RoyaltyInfo memory royalty = _tokenRoyaltyInfo[_tokenId]; if (royalty.receiver == address(0)) { royalty = _defaultRoyaltyInfo; } uint256 royaltyAmount = (_salePrice * royalty.royaltyFraction) / _feeDenominator(); return (royalty.receiver, royaltyAmount); } /** * @dev The denominator with which to interpret the fee set in {_setTokenRoyalty} and {_setDefaultRoyalty} as a * fraction of the sale price. Defaults to 10000 so fees are expressed in basis points, but may be customized by an * override. */ function _feeDenominator() internal pure virtual returns (uint96) { return 10000; } /** * @dev Sets the royalty information that all ids in this contract will default to. * * Requirements: * * - `receiver` cannot be the zero address. * - `feeNumerator` cannot be greater than the fee denominator. */ function _setDefaultRoyalty(address receiver, uint96 feeNumerator) internal virtual { require(feeNumerator <= _feeDenominator(), "ERC2981: royalty fee will exceed salePrice"); require(receiver != address(0), "ERC2981: invalid receiver"); _defaultRoyaltyInfo = RoyaltyInfo(receiver, feeNumerator); } /** * @dev Removes default royalty information. */ function _deleteDefaultRoyalty() internal virtual { delete _defaultRoyaltyInfo; } /** * @dev Sets the royalty information for a specific token id, overriding the global default. * * Requirements: * * - `receiver` cannot be the zero address. * - `feeNumerator` cannot be greater than the fee denominator. */ function _setTokenRoyalty( uint256 tokenId, address receiver, uint96 feeNumerator ) internal virtual { require(feeNumerator <= _feeDenominator(), "ERC2981: royalty fee will exceed salePrice"); require(receiver != address(0), "ERC2981: Invalid parameters"); _tokenRoyaltyInfo[tokenId] = RoyaltyInfo(receiver, feeNumerator); } /** * @dev Resets royalty information for the token id back to the global default. */ function _resetTokenRoyalty(uint256 tokenId) internal virtual { delete _tokenRoyaltyInfo[tokenId]; } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.4; import "../access/OwnablePermissions.sol"; import "../interfaces/ICreatorToken.sol"; import "../interfaces/ICreatorTokenTransferValidator.sol"; import "../utils/TransferValidation.sol"; import "@openzeppelin/contracts/interfaces/IERC165.sol"; /** * @title CreatorTokenBase * @author Limit Break, Inc. * @notice CreatorTokenBase is an abstract contract that provides basic functionality for managing token * transfer policies through an implementation of ICreatorTokenTransferValidator. This contract is intended to be used * as a base for creator-specific token contracts, enabling customizable transfer restrictions and security policies. * * <h4>Features:</h4> * <ul>Ownable: This contract can have an owner who can set and update the transfer validator.</ul> * <ul>TransferValidation: Implements the basic token transfer validation interface.</ul> * <ul>ICreatorToken: Implements the interface for creator tokens, providing view functions for token security policies.</ul> * * <h4>Benefits:</h4> * <ul>Provides a flexible and modular way to implement custom token transfer restrictions and security policies.</ul> * <ul>Allows creators to enforce policies such as whitelisted operators and permitted contract receivers.</ul> * <ul>Can be easily integrated into other token contracts as a base contract.</ul> * * <h4>Intended Usage:</h4> * <ul>Use as a base contract for creator token implementations that require advanced transfer restrictions and * security policies.</ul> * <ul>Set and update the ICreatorTokenTransferValidator implementation contract to enforce desired policies for the * creator token.</ul> */ abstract contract CreatorTokenBase is OwnablePermissions, TransferValidation, ICreatorToken { error CreatorTokenBase__InvalidTransferValidatorContract(); error CreatorTokenBase__SetTransferValidatorFirst(); address public constant DEFAULT_TRANSFER_VALIDATOR = address(0x0000721C310194CcfC01E523fc93C9cCcFa2A0Ac); TransferSecurityLevels public constant DEFAULT_TRANSFER_SECURITY_LEVEL = TransferSecurityLevels.One; uint120 public constant DEFAULT_OPERATOR_WHITELIST_ID = uint120(1); ICreatorTokenTransferValidator private transferValidator; /** * @notice Allows the contract owner to set the transfer validator to the official validator contract * and set the security policy to the recommended default settings. * @dev May be overridden to change the default behavior of an individual collection. */ function setToDefaultSecurityPolicy() public virtual { _requireCallerIsContractOwner(); setTransferValidator(DEFAULT_TRANSFER_VALIDATOR); ICreatorTokenTransferValidator(DEFAULT_TRANSFER_VALIDATOR).setTransferSecurityLevelOfCollection(address(this), DEFAULT_TRANSFER_SECURITY_LEVEL); ICreatorTokenTransferValidator(DEFAULT_TRANSFER_VALIDATOR).setOperatorWhitelistOfCollection(address(this), DEFAULT_OPERATOR_WHITELIST_ID); } /** * @notice Allows the contract owner to set the transfer validator to a custom validator contract * and set the security policy to their own custom settings. */ function setToCustomValidatorAndSecurityPolicy( address validator, TransferSecurityLevels level, uint120 operatorWhitelistId, uint120 permittedContractReceiversAllowlistId) public { _requireCallerIsContractOwner(); setTransferValidator(validator); ICreatorTokenTransferValidator(validator). setTransferSecurityLevelOfCollection(address(this), level); ICreatorTokenTransferValidator(validator). setOperatorWhitelistOfCollection(address(this), operatorWhitelistId); ICreatorTokenTransferValidator(validator). setPermittedContractReceiverAllowlistOfCollection(address(this), permittedContractReceiversAllowlistId); } /** * @notice Allows the contract owner to set the security policy to their own custom settings. * @dev Reverts if the transfer validator has not been set. */ function setToCustomSecurityPolicy( TransferSecurityLevels level, uint120 operatorWhitelistId, uint120 permittedContractReceiversAllowlistId) public { _requireCallerIsContractOwner(); ICreatorTokenTransferValidator validator = getTransferValidator(); if (address(validator) == address(0)) { revert CreatorTokenBase__SetTransferValidatorFirst(); } validator.setTransferSecurityLevelOfCollection(address(this), level); validator.setOperatorWhitelistOfCollection(address(this), operatorWhitelistId); validator.setPermittedContractReceiverAllowlistOfCollection(address(this), permittedContractReceiversAllowlistId); } /** * @notice Sets the transfer validator for the token contract. * * @dev Throws when provided validator contract is not the zero address and doesn't support * the ICreatorTokenTransferValidator interface. * @dev Throws when the caller is not the contract owner. * * @dev <h4>Postconditions:</h4> * 1. The transferValidator address is updated. * 2. The `TransferValidatorUpdated` event is emitted. * * @param transferValidator_ The address of the transfer validator contract. */ function setTransferValidator(address transferValidator_) public { _requireCallerIsContractOwner(); bool isValidTransferValidator = false; if(transferValidator_.code.length > 0) { try IERC165(transferValidator_).supportsInterface(type(ICreatorTokenTransferValidator).interfaceId) returns (bool supportsInterface) { isValidTransferValidator = supportsInterface; } catch {} } if(transferValidator_ != address(0) && !isValidTransferValidator) { revert CreatorTokenBase__InvalidTransferValidatorContract(); } emit TransferValidatorUpdated(address(transferValidator), transferValidator_); transferValidator = ICreatorTokenTransferValidator(transferValidator_); } /** * @notice Returns the transfer validator contract address for this token contract. */ function getTransferValidator() public view override returns (ICreatorTokenTransferValidator) { return transferValidator; } /** * @notice Returns the security policy for this token contract, which includes: * Transfer security level, operator whitelist id, permitted contract receiver allowlist id. */ function getSecurityPolicy() public view override returns (CollectionSecurityPolicy memory) { if (address(transferValidator) != address(0)) { return transferValidator.getCollectionSecurityPolicy(address(this)); } return CollectionSecurityPolicy({ transferSecurityLevel: TransferSecurityLevels.Zero, operatorWhitelistId: 0, permittedContractReceiversId: 0 }); } /** * @notice Returns the list of all whitelisted operators for this token contract. * @dev This can be an expensive call and should only be used in view-only functions. */ function getWhitelistedOperators() public view override returns (address[] memory) { if (address(transferValidator) != address(0)) { return transferValidator.getWhitelistedOperators( transferValidator.getCollectionSecurityPolicy(address(this)).operatorWhitelistId); } return new address[](0); } /** * @notice Returns the list of permitted contract receivers for this token contract. * @dev This can be an expensive call and should only be used in view-only functions. */ function getPermittedContractReceivers() public view override returns (address[] memory) { if (address(transferValidator) != address(0)) { return transferValidator.getPermittedContractReceivers( transferValidator.getCollectionSecurityPolicy(address(this)).permittedContractReceiversId); } return new address[](0); } /** * @notice Checks if an operator is whitelisted for this token contract. * @param operator The address of the operator to check. */ function isOperatorWhitelisted(address operator) public view override returns (bool) { if (address(transferValidator) != address(0)) { return transferValidator.isOperatorWhitelisted( transferValidator.getCollectionSecurityPolicy(address(this)).operatorWhitelistId, operator); } return false; } /** * @notice Checks if a contract receiver is permitted for this token contract. * @param receiver The address of the receiver to check. */ function isContractReceiverPermitted(address receiver) public view override returns (bool) { if (address(transferValidator) != address(0)) { return transferValidator.isContractReceiverPermitted( transferValidator.getCollectionSecurityPolicy(address(this)).permittedContractReceiversId, receiver); } return false; } /** * @notice Determines if a transfer is allowed based on the token contract's security policy. Use this function * to simulate whether or not a transfer made by the specified `caller` from the `from` address to the `to` * address would be allowed by this token's security policy. * * @notice This function only checks the security policy restrictions and does not check whether token ownership * or approvals are in place. * * @param caller The address of the simulated caller. * @param from The address of the sender. * @param to The address of the receiver. * @return True if the transfer is allowed, false otherwise. */ function isTransferAllowed(address caller, address from, address to) public view override returns (bool) { if (address(transferValidator) != address(0)) { try transferValidator.applyCollectionTransferPolicy(caller, from, to) { return true; } catch { return false; } } return true; } /** * @dev Pre-validates a token transfer, reverting if the transfer is not allowed by this token's security policy. * Inheriting contracts are responsible for overriding the _beforeTokenTransfer function, or its equivalent * and calling _validateBeforeTransfer so that checks can be properly applied during token transfers. * * @dev Throws when the transfer doesn't comply with the collection's transfer policy, if the transferValidator is * set to a non-zero address. * * @param caller The address of the caller. * @param from The address of the sender. * @param to The address of the receiver. */ function _preValidateTransfer( address caller, address from, address to, uint256 /*tokenId*/, uint256 /*value*/) internal virtual override { if (address(transferValidator) != address(0)) { transferValidator.applyCollectionTransferPolicy(caller, from, to); } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.8.0) (token/ERC721/IERC721.sol) pragma solidity ^0.8.0; import "../../utils/introspection/IERC165.sol"; /** * @dev Required interface of an ERC721 compliant contract. */ interface IERC721 is IERC165 { /** * @dev Emitted when `tokenId` token is transferred from `from` to `to`. */ event Transfer(address indexed from, address indexed to, uint256 indexed tokenId); /** * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token. */ event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId); /** * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets. */ event ApprovalForAll(address indexed owner, address indexed operator, bool approved); /** * @dev Returns the number of tokens in ``owner``'s account. */ function balanceOf(address owner) external view returns (uint256 balance); /** * @dev Returns the owner of the `tokenId` token. * * Requirements: * * - `tokenId` must exist. */ function ownerOf(uint256 tokenId) external view returns (address owner); /** * @dev Safely transfers `tokenId` token from `from` to `to`. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function safeTransferFrom( address from, address to, uint256 tokenId, bytes calldata data ) external; /** * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients * are aware of the ERC721 protocol to prevent tokens from being forever locked. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If the caller is not `from`, it must have been allowed to move this token by either {approve} or {setApprovalForAll}. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function safeTransferFrom( address from, address to, uint256 tokenId ) external; /** * @dev Transfers `tokenId` token from `from` to `to`. * * WARNING: Note that the caller is responsible to confirm that the recipient is capable of receiving ERC721 * or else they may be permanently lost. Usage of {safeTransferFrom} prevents loss, though the caller must * understand this adds an external call which potentially creates a reentrancy vulnerability. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must be owned by `from`. * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}. * * Emits a {Transfer} event. */ function transferFrom( address from, address to, uint256 tokenId ) external; /** * @dev Gives permission to `to` to transfer `tokenId` token to another account. * The approval is cleared when the token is transferred. * * Only a single account can be approved at a time, so approving the zero address clears previous approvals. * * Requirements: * * - The caller must own the token or be an approved operator. * - `tokenId` must exist. * * Emits an {Approval} event. */ function approve(address to, uint256 tokenId) external; /** * @dev Approve or remove `operator` as an operator for the caller. * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller. * * Requirements: * * - The `operator` cannot be the caller. * * Emits an {ApprovalForAll} event. */ function setApprovalForAll(address operator, bool _approved) external; /** * @dev Returns the account approved for `tokenId` token. * * Requirements: * * - `tokenId` must exist. */ function getApproved(uint256 tokenId) external view returns (address operator); /** * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`. * * See {setApprovalForAll} */ function isApprovedForAll(address owner, address operator) external view returns (bool); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.6.0) (token/ERC721/IERC721Receiver.sol) pragma solidity ^0.8.0; /** * @title ERC721 token receiver interface * @dev Interface for any contract that wants to support safeTransfers * from ERC721 asset contracts. */ interface IERC721Receiver { /** * @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom} * by `operator` from `from`, this function is called. * * It must return its Solidity selector to confirm the token transfer. * If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted. * * The selector can be obtained in Solidity with `IERC721Receiver.onERC721Received.selector`. */ function onERC721Received( address operator, address from, uint256 tokenId, bytes calldata data ) external returns (bytes4); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/IERC721Metadata.sol) pragma solidity ^0.8.0; import "../IERC721.sol"; /** * @title ERC-721 Non-Fungible Token Standard, optional metadata extension * @dev See https://eips.ethereum.org/EIPS/eip-721 */ interface IERC721Metadata is IERC721 { /** * @dev Returns the token collection name. */ function name() external view returns (string memory); /** * @dev Returns the token collection symbol. */ function symbol() external view returns (string memory); /** * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token. */ function tokenURI(uint256 tokenId) external view returns (string memory); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.8.0) (utils/Address.sol) pragma solidity ^0.8.1; /** * @dev Collection of functions related to the address type */ library Address { /** * @dev Returns true if `account` is a contract. * * [IMPORTANT] * ==== * It is unsafe to assume that an address for which this function returns * false is an externally-owned account (EOA) and not a contract. * * Among others, `isContract` will return false for the following * types of addresses: * * - an externally-owned account * - a contract in construction * - an address where a contract will be created * - an address where a contract lived, but was destroyed * ==== * * [IMPORTANT] * ==== * You shouldn't rely on `isContract` to protect against flash loan attacks! * * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract * constructor. * ==== */ function isContract(address account) internal view returns (bool) { // This method relies on extcodesize/address.code.length, which returns 0 // for contracts in construction, since the code is only stored at the end // of the constructor execution. return account.code.length > 0; } /** * @dev Replacement for Solidity's `transfer`: sends `amount` wei to * `recipient`, forwarding all available gas and reverting on errors. * * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost * of certain opcodes, possibly making contracts go over the 2300 gas limit * imposed by `transfer`, making them unable to receive funds via * `transfer`. {sendValue} removes this limitation. * * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more]. * * IMPORTANT: because control is transferred to `recipient`, care must be * taken to not create reentrancy vulnerabilities. Consider using * {ReentrancyGuard} or the * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern]. */ function sendValue(address payable recipient, uint256 amount) internal { require(address(this).balance >= amount, "Address: insufficient balance"); (bool success, ) = recipient.call{value: amount}(""); require(success, "Address: unable to send value, recipient may have reverted"); } /** * @dev Performs a Solidity function call using a low level `call`. A * plain `call` is an unsafe replacement for a function call: use this * function instead. * * If `target` reverts with a revert reason, it is bubbled up by this * function (like regular Solidity function calls). * * Returns the raw returned data. To convert to the expected return value, * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`]. * * Requirements: * * - `target` must be a contract. * - calling `target` with `data` must not revert. * * _Available since v3.1._ */ function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCallWithValue(target, data, 0, "Address: low-level call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with * `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { return functionCallWithValue(target, data, 0, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but also transferring `value` wei to `target`. * * Requirements: * * - the calling contract must have an ETH balance of at least `value`. * - the called Solidity function must be `payable`. * * _Available since v3.1._ */ function functionCallWithValue( address target, bytes memory data, uint256 value ) internal returns (bytes memory) { return functionCallWithValue(target, data, value, "Address: low-level call with value failed"); } /** * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but * with `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCallWithValue( address target, bytes memory data, uint256 value, string memory errorMessage ) internal returns (bytes memory) { require(address(this).balance >= value, "Address: insufficient balance for call"); (bool success, bytes memory returndata) = target.call{value: value}(data); return verifyCallResultFromTarget(target, success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) { return functionStaticCall(target, data, "Address: low-level static call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall( address target, bytes memory data, string memory errorMessage ) internal view returns (bytes memory) { (bool success, bytes memory returndata) = target.staticcall(data); return verifyCallResultFromTarget(target, success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) { return functionDelegateCall(target, data, "Address: low-level delegate call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { (bool success, bytes memory returndata) = target.delegatecall(data); return verifyCallResultFromTarget(target, success, returndata, errorMessage); } /** * @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling * the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract. * * _Available since v4.8._ */ function verifyCallResultFromTarget( address target, bool success, bytes memory returndata, string memory errorMessage ) internal view returns (bytes memory) { if (success) { if (returndata.length == 0) { // only check isContract if the call was successful and the return data is empty // otherwise we already know that it was a contract require(isContract(target), "Address: call to non-contract"); } return returndata; } else { _revert(returndata, errorMessage); } } /** * @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the * revert reason or using the provided one. * * _Available since v4.3._ */ function verifyCallResult( bool success, bytes memory returndata, string memory errorMessage ) internal pure returns (bytes memory) { if (success) { return returndata; } else { _revert(returndata, errorMessage); } } function _revert(bytes memory returndata, string memory errorMessage) private pure { // Look for revert reason and bubble it up if present if (returndata.length > 0) { // The easiest way to bubble the revert reason is using memory via assembly /// @solidity memory-safe-assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/Context.sol) pragma solidity ^0.8.0; /** * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. */ abstract contract Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes calldata) { return msg.data; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.8.0) (utils/Strings.sol) pragma solidity ^0.8.0; import "./math/Math.sol"; /** * @dev String operations. */ library Strings { bytes16 private constant _SYMBOLS = "0123456789abcdef"; uint8 private constant _ADDRESS_LENGTH = 20; /** * @dev Converts a `uint256` to its ASCII `string` decimal representation. */ function toString(uint256 value) internal pure returns (string memory) { unchecked { uint256 length = Math.log10(value) + 1; string memory buffer = new string(length); uint256 ptr; /// @solidity memory-safe-assembly assembly { ptr := add(buffer, add(32, length)) } while (true) { ptr--; /// @solidity memory-safe-assembly assembly { mstore8(ptr, byte(mod(value, 10), _SYMBOLS)) } value /= 10; if (value == 0) break; } return buffer; } } /** * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation. */ function toHexString(uint256 value) internal pure returns (string memory) { unchecked { return toHexString(value, Math.log256(value) + 1); } } /** * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length. */ function toHexString(uint256 value, uint256 length) internal pure returns (string memory) { bytes memory buffer = new bytes(2 * length + 2); buffer[0] = "0"; buffer[1] = "x"; for (uint256 i = 2 * length + 1; i > 1; --i) { buffer[i] = _SYMBOLS[value & 0xf]; value >>= 4; } require(value == 0, "Strings: hex length insufficient"); return string(buffer); } /** * @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal representation. */ function toHexString(address addr) internal pure returns (string memory) { return toHexString(uint256(uint160(addr)), _ADDRESS_LENGTH); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol) pragma solidity ^0.8.0; import "./IERC165.sol"; /** * @dev Implementation of the {IERC165} interface. * * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check * for the additional interface id that will be supported. For example: * * ```solidity * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { * return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId); * } * ``` * * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation. */ abstract contract ERC165 is IERC165 { /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { return interfaceId == type(IERC165).interfaceId; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.6.0) (interfaces/IERC2981.sol) pragma solidity ^0.8.0; import "../utils/introspection/IERC165.sol"; /** * @dev Interface for the NFT Royalty Standard. * * A standardized way to retrieve royalty payment information for non-fungible tokens (NFTs) to enable universal * support for royalty payments across all NFT marketplaces and ecosystem participants. * * _Available since v4.5._ */ interface IERC2981 is IERC165 { /** * @dev Returns how much royalty is owed and to whom, based on a sale price that may be denominated in any unit of * exchange. The royalty amount is denominated and should be paid in that same unit of exchange. */ function royaltyInfo(uint256 tokenId, uint256 salePrice) external view returns (address receiver, uint256 royaltyAmount); }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.4; import "../interfaces/ICreatorTokenTransferValidator.sol"; interface ICreatorToken { event TransferValidatorUpdated(address oldValidator, address newValidator); function getTransferValidator() external view returns (ICreatorTokenTransferValidator); function getSecurityPolicy() external view returns (CollectionSecurityPolicy memory); function getWhitelistedOperators() external view returns (address[] memory); function getPermittedContractReceivers() external view returns (address[] memory); function isOperatorWhitelisted(address operator) external view returns (bool); function isContractReceiverPermitted(address receiver) external view returns (bool); function isTransferAllowed(address caller, address from, address to) external view returns (bool); }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.4; import "./IEOARegistry.sol"; import "./ITransferSecurityRegistry.sol"; import "./ITransferValidator.sol"; interface ICreatorTokenTransferValidator is ITransferSecurityRegistry, ITransferValidator, IEOARegistry {}
// SPDX-License-Identifier: MIT pragma solidity ^0.8.4; import "@openzeppelin/contracts/utils/Context.sol"; /** * @title TransferValidation * @author Limit Break, Inc. * @notice A mix-in that can be combined with ERC-721 contracts to provide more granular hooks. * Openzeppelin's ERC721 contract only provides hooks for before and after transfer. This allows * developers to validate or customize transfers within the context of a mint, a burn, or a transfer. */ abstract contract TransferValidation is Context { error ShouldNotMintToBurnAddress(); /// @dev Inheriting contracts should call this function in the _beforeTokenTransfer function to get more granular hooks. function _validateBeforeTransfer(address from, address to, uint256 tokenId) internal virtual { bool fromZeroAddress = from == address(0); bool toZeroAddress = to == address(0); if(fromZeroAddress && toZeroAddress) { revert ShouldNotMintToBurnAddress(); } else if(fromZeroAddress) { _preValidateMint(_msgSender(), to, tokenId, msg.value); } else if(toZeroAddress) { _preValidateBurn(_msgSender(), from, tokenId, msg.value); } else { _preValidateTransfer(_msgSender(), from, to, tokenId, msg.value); } } /// @dev Inheriting contracts should call this function in the _afterTokenTransfer function to get more granular hooks. function _validateAfterTransfer(address from, address to, uint256 tokenId) internal virtual { bool fromZeroAddress = from == address(0); bool toZeroAddress = to == address(0); if(fromZeroAddress && toZeroAddress) { revert ShouldNotMintToBurnAddress(); } else if(fromZeroAddress) { _postValidateMint(_msgSender(), to, tokenId, msg.value); } else if(toZeroAddress) { _postValidateBurn(_msgSender(), from, tokenId, msg.value); } else { _postValidateTransfer(_msgSender(), from, to, tokenId, msg.value); } } /// @dev Optional validation hook that fires before a mint function _preValidateMint(address caller, address to, uint256 tokenId, uint256 value) internal virtual {} /// @dev Optional validation hook that fires after a mint function _postValidateMint(address caller, address to, uint256 tokenId, uint256 value) internal virtual {} /// @dev Optional validation hook that fires before a burn function _preValidateBurn(address caller, address from, uint256 tokenId, uint256 value) internal virtual {} /// @dev Optional validation hook that fires after a burn function _postValidateBurn(address caller, address from, uint256 tokenId, uint256 value) internal virtual {} /// @dev Optional validation hook that fires before a transfer function _preValidateTransfer(address caller, address from, address to, uint256 tokenId, uint256 value) internal virtual {} /// @dev Optional validation hook that fires after a transfer function _postValidateTransfer(address caller, address from, address to, uint256 tokenId, uint256 value) internal virtual {} }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (interfaces/IERC165.sol) pragma solidity ^0.8.0; import "../utils/introspection/IERC165.sol";
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol) pragma solidity ^0.8.0; /** * @dev Interface of the ERC165 standard, as defined in the * https://eips.ethereum.org/EIPS/eip-165[EIP]. * * Implementers can declare support of contract interfaces, which can then be * queried by others ({ERC165Checker}). * * For an implementation, see {ERC165}. */ interface IERC165 { /** * @dev Returns true if this contract implements the interface defined by * `interfaceId`. See the corresponding * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section] * to learn more about how these ids are created. * * This function call must use less than 30 000 gas. */ function supportsInterface(bytes4 interfaceId) external view returns (bool); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.8.0) (utils/math/Math.sol) pragma solidity ^0.8.0; /** * @dev Standard math utilities missing in the Solidity language. */ library Math { enum Rounding { Down, // Toward negative infinity Up, // Toward infinity Zero // Toward zero } /** * @dev Returns the largest of two numbers. */ function max(uint256 a, uint256 b) internal pure returns (uint256) { return a > b ? a : b; } /** * @dev Returns the smallest of two numbers. */ function min(uint256 a, uint256 b) internal pure returns (uint256) { return a < b ? a : b; } /** * @dev Returns the average of two numbers. The result is rounded towards * zero. */ function average(uint256 a, uint256 b) internal pure returns (uint256) { // (a + b) / 2 can overflow. return (a & b) + (a ^ b) / 2; } /** * @dev Returns the ceiling of the division of two numbers. * * This differs from standard division with `/` in that it rounds up instead * of rounding down. */ function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) { // (a + b - 1) / b can overflow on addition, so we distribute. return a == 0 ? 0 : (a - 1) / b + 1; } /** * @notice Calculates floor(x * y / denominator) with full precision. Throws if result overflows a uint256 or denominator == 0 * @dev Original credit to Remco Bloemen under MIT license (https://xn--2-umb.com/21/muldiv) * with further edits by Uniswap Labs also under MIT license. */ function mulDiv( uint256 x, uint256 y, uint256 denominator ) internal pure returns (uint256 result) { unchecked { // 512-bit multiply [prod1 prod0] = x * y. Compute the product mod 2^256 and mod 2^256 - 1, then use // use the Chinese Remainder Theorem to reconstruct the 512 bit result. The result is stored in two 256 // variables such that product = prod1 * 2^256 + prod0. uint256 prod0; // Least significant 256 bits of the product uint256 prod1; // Most significant 256 bits of the product assembly { let mm := mulmod(x, y, not(0)) prod0 := mul(x, y) prod1 := sub(sub(mm, prod0), lt(mm, prod0)) } // Handle non-overflow cases, 256 by 256 division. if (prod1 == 0) { return prod0 / denominator; } // Make sure the result is less than 2^256. Also prevents denominator == 0. require(denominator > prod1); /////////////////////////////////////////////// // 512 by 256 division. /////////////////////////////////////////////// // Make division exact by subtracting the remainder from [prod1 prod0]. uint256 remainder; assembly { // Compute remainder using mulmod. remainder := mulmod(x, y, denominator) // Subtract 256 bit number from 512 bit number. prod1 := sub(prod1, gt(remainder, prod0)) prod0 := sub(prod0, remainder) } // Factor powers of two out of denominator and compute largest power of two divisor of denominator. Always >= 1. // See https://cs.stackexchange.com/q/138556/92363. // Does not overflow because the denominator cannot be zero at this stage in the function. uint256 twos = denominator & (~denominator + 1); assembly { // Divide denominator by twos. denominator := div(denominator, twos) // Divide [prod1 prod0] by twos. prod0 := div(prod0, twos) // Flip twos such that it is 2^256 / twos. If twos is zero, then it becomes one. twos := add(div(sub(0, twos), twos), 1) } // Shift in bits from prod1 into prod0. prod0 |= prod1 * twos; // Invert denominator mod 2^256. Now that denominator is an odd number, it has an inverse modulo 2^256 such // that denominator * inv = 1 mod 2^256. Compute the inverse by starting with a seed that is correct for // four bits. That is, denominator * inv = 1 mod 2^4. uint256 inverse = (3 * denominator) ^ 2; // Use the Newton-Raphson iteration to improve the precision. Thanks to Hensel's lifting lemma, this also works // in modular arithmetic, doubling the correct bits in each step. inverse *= 2 - denominator * inverse; // inverse mod 2^8 inverse *= 2 - denominator * inverse; // inverse mod 2^16 inverse *= 2 - denominator * inverse; // inverse mod 2^32 inverse *= 2 - denominator * inverse; // inverse mod 2^64 inverse *= 2 - denominator * inverse; // inverse mod 2^128 inverse *= 2 - denominator * inverse; // inverse mod 2^256 // Because the division is now exact we can divide by multiplying with the modular inverse of denominator. // This will give us the correct result modulo 2^256. Since the preconditions guarantee that the outcome is // less than 2^256, this is the final result. We don't need to compute the high bits of the result and prod1 // is no longer required. result = prod0 * inverse; return result; } } /** * @notice Calculates x * y / denominator with full precision, following the selected rounding direction. */ function mulDiv( uint256 x, uint256 y, uint256 denominator, Rounding rounding ) internal pure returns (uint256) { uint256 result = mulDiv(x, y, denominator); if (rounding == Rounding.Up && mulmod(x, y, denominator) > 0) { result += 1; } return result; } /** * @dev Returns the square root of a number. If the number is not a perfect square, the value is rounded down. * * Inspired by Henry S. Warren, Jr.'s "Hacker's Delight" (Chapter 11). */ function sqrt(uint256 a) internal pure returns (uint256) { if (a == 0) { return 0; } // For our first guess, we get the biggest power of 2 which is smaller than the square root of the target. // // We know that the "msb" (most significant bit) of our target number `a` is a power of 2 such that we have // `msb(a) <= a < 2*msb(a)`. This value can be written `msb(a)=2**k` with `k=log2(a)`. // // This can be rewritten `2**log2(a) <= a < 2**(log2(a) + 1)` // → `sqrt(2**k) <= sqrt(a) < sqrt(2**(k+1))` // → `2**(k/2) <= sqrt(a) < 2**((k+1)/2) <= 2**(k/2 + 1)` // // Consequently, `2**(log2(a) / 2)` is a good first approximation of `sqrt(a)` with at least 1 correct bit. uint256 result = 1 << (log2(a) >> 1); // At this point `result` is an estimation with one bit of precision. We know the true value is a uint128, // since it is the square root of a uint256. Newton's method converges quadratically (precision doubles at // every iteration). We thus need at most 7 iteration to turn our partial result with one bit of precision // into the expected uint128 result. unchecked { result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; return min(result, a / result); } } /** * @notice Calculates sqrt(a), following the selected rounding direction. */ function sqrt(uint256 a, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = sqrt(a); return result + (rounding == Rounding.Up && result * result < a ? 1 : 0); } } /** * @dev Return the log in base 2, rounded down, of a positive value. * Returns 0 if given 0. */ function log2(uint256 value) internal pure returns (uint256) { uint256 result = 0; unchecked { if (value >> 128 > 0) { value >>= 128; result += 128; } if (value >> 64 > 0) { value >>= 64; result += 64; } if (value >> 32 > 0) { value >>= 32; result += 32; } if (value >> 16 > 0) { value >>= 16; result += 16; } if (value >> 8 > 0) { value >>= 8; result += 8; } if (value >> 4 > 0) { value >>= 4; result += 4; } if (value >> 2 > 0) { value >>= 2; result += 2; } if (value >> 1 > 0) { result += 1; } } return result; } /** * @dev Return the log in base 2, following the selected rounding direction, of a positive value. * Returns 0 if given 0. */ function log2(uint256 value, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = log2(value); return result + (rounding == Rounding.Up && 1 << result < value ? 1 : 0); } } /** * @dev Return the log in base 10, rounded down, of a positive value. * Returns 0 if given 0. */ function log10(uint256 value) internal pure returns (uint256) { uint256 result = 0; unchecked { if (value >= 10**64) { value /= 10**64; result += 64; } if (value >= 10**32) { value /= 10**32; result += 32; } if (value >= 10**16) { value /= 10**16; result += 16; } if (value >= 10**8) { value /= 10**8; result += 8; } if (value >= 10**4) { value /= 10**4; result += 4; } if (value >= 10**2) { value /= 10**2; result += 2; } if (value >= 10**1) { result += 1; } } return result; } /** * @dev Return the log in base 10, following the selected rounding direction, of a positive value. * Returns 0 if given 0. */ function log10(uint256 value, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = log10(value); return result + (rounding == Rounding.Up && 10**result < value ? 1 : 0); } } /** * @dev Return the log in base 256, rounded down, of a positive value. * Returns 0 if given 0. * * Adding one to the result gives the number of pairs of hex symbols needed to represent `value` as a hex string. */ function log256(uint256 value) internal pure returns (uint256) { uint256 result = 0; unchecked { if (value >> 128 > 0) { value >>= 128; result += 16; } if (value >> 64 > 0) { value >>= 64; result += 8; } if (value >> 32 > 0) { value >>= 32; result += 4; } if (value >> 16 > 0) { value >>= 16; result += 2; } if (value >> 8 > 0) { result += 1; } } return result; } /** * @dev Return the log in base 10, following the selected rounding direction, of a positive value. * Returns 0 if given 0. */ function log256(uint256 value, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = log256(value); return result + (rounding == Rounding.Up && 1 << (result * 8) < value ? 1 : 0); } } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.4; import "@openzeppelin/contracts/utils/introspection/IERC165.sol"; interface IEOARegistry is IERC165 { function isVerifiedEOA(address account) external view returns (bool); }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.4; import "../utils/TransferPolicy.sol"; interface ITransferSecurityRegistry { event AddedToAllowlist(AllowlistTypes indexed kind, uint256 indexed id, address indexed account); event CreatedAllowlist(AllowlistTypes indexed kind, uint256 indexed id, string indexed name); event ReassignedAllowlistOwnership(AllowlistTypes indexed kind, uint256 indexed id, address indexed newOwner); event RemovedFromAllowlist(AllowlistTypes indexed kind, uint256 indexed id, address indexed account); event SetAllowlist(AllowlistTypes indexed kind, address indexed collection, uint120 indexed id); event SetTransferSecurityLevel(address indexed collection, TransferSecurityLevels level); function createOperatorWhitelist(string calldata name) external returns (uint120); function createPermittedContractReceiverAllowlist(string calldata name) external returns (uint120); function reassignOwnershipOfOperatorWhitelist(uint120 id, address newOwner) external; function reassignOwnershipOfPermittedContractReceiverAllowlist(uint120 id, address newOwner) external; function renounceOwnershipOfOperatorWhitelist(uint120 id) external; function renounceOwnershipOfPermittedContractReceiverAllowlist(uint120 id) external; function setTransferSecurityLevelOfCollection(address collection, TransferSecurityLevels level) external; function setOperatorWhitelistOfCollection(address collection, uint120 id) external; function setPermittedContractReceiverAllowlistOfCollection(address collection, uint120 id) external; function addOperatorToWhitelist(uint120 id, address operator) external; function addPermittedContractReceiverToAllowlist(uint120 id, address receiver) external; function removeOperatorFromWhitelist(uint120 id, address operator) external; function removePermittedContractReceiverFromAllowlist(uint120 id, address receiver) external; function getCollectionSecurityPolicy(address collection) external view returns (CollectionSecurityPolicy memory); function getWhitelistedOperators(uint120 id) external view returns (address[] memory); function getPermittedContractReceivers(uint120 id) external view returns (address[] memory); function isOperatorWhitelisted(uint120 id, address operator) external view returns (bool); function isContractReceiverPermitted(uint120 id, address receiver) external view returns (bool); }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.4; import "../utils/TransferPolicy.sol"; interface ITransferValidator { function applyCollectionTransferPolicy(address caller, address from, address to) external view; }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.4; enum AllowlistTypes { Operators, PermittedContractReceivers } enum ReceiverConstraints { None, NoCode, EOA } enum CallerConstraints { None, OperatorWhitelistEnableOTC, OperatorWhitelistDisableOTC } enum StakerConstraints { None, CallerIsTxOrigin, EOA } enum TransferSecurityLevels { Zero, One, Two, Three, Four, Five, Six } struct TransferSecurityPolicy { CallerConstraints callerConstraints; ReceiverConstraints receiverConstraints; } struct CollectionSecurityPolicy { TransferSecurityLevels transferSecurityLevel; uint120 operatorWhitelistId; uint120 permittedContractReceiversId; }
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Contract Security Audit
- No Contract Security Audit Submitted- Submit Audit Here
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TransferSecurityLevels","name":"level","type":"uint8"},{"internalType":"uint120","name":"operatorWhitelistId","type":"uint120"},{"internalType":"uint120","name":"permittedContractReceiversAllowlistId","type":"uint120"}],"name":"setToCustomValidatorAndSecurityPolicy","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"setToDefaultSecurityPolicy","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"transferValidator_","type":"address"}],"name":"setTransferValidator","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes4","name":"interfaceId","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"index","type":"uint256"}],"name":"tokenByIndex","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"uint256","name":"index","type":"uint256"}],"name":"tokenOfOwnerByIndex","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"tokenURI","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"}],"name":"tokensOfOwner","outputs":[{"internalType":"uint256[]","name":"","type":"uint256[]"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"transferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"}]
Contract Creation Code
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Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)
00000000000000000000000072c916aa1d33aa2b9fcf7a7a146d22efd22cdde80000000000000000000000008005e7626a079e07f16cc59c01e1be6cb54d1d24
-----Decoded View---------------
Arg [0] : _xDroidsAddr (address): 0x72C916aA1d33aa2b9fCf7a7A146d22EFD22cdDE8
Arg [1] : _stakingContractAddr (address): 0x8005e7626a079e07F16CC59c01e1Be6Cb54d1d24
-----Encoded View---------------
2 Constructor Arguments found :
Arg [0] : 00000000000000000000000072c916aa1d33aa2b9fcf7a7a146d22efd22cdde8
Arg [1] : 0000000000000000000000008005e7626a079e07f16cc59c01e1be6cb54d1d24
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